People once used all this stuff.
Peels - with most fruits and vegetables, much of the nutrients are in the skin.
-Onion skin - quercetin a very important antioxidant and anti-histamine. Save your onion and garlic skins and boil them with the ends and other veggie scraps for broth, Especially the green ends from green onions and leeks. http://www.almanac.c...health-and-more
Bones for a gelatin rich broth that provides all the nutrients your joints and skin need and will heal your intestines. (look into GAPs diet) Feet and wing tips are some of the best sources of bones to make a gelatin rich broth/stock, but save and boil all your bones. use a crock pot to simmer for 4-12 hours or more depending on what the bones are (i.e. poultry vs beef).
Shrimp and other crustacean shells are where they usually get the glucosamine for supplements. Glucosamine binds up gluten and other lectins that can permeate your digestive tract. I haven't found any info on how much glucosamine you get by boiling, but it also makes a flavorful stock. In addition, many cultures dry whole (shell and all) tiny shrimp and eat for snacks or grind to a powder to use in cooking. Many people roast or saute the shells first, then boil. tips -- http://www.marksdail...hread50015.html discussion, http://www.nytimes.c...ing/10appe.html
Shrimp soup - http://www.foodnetwo...cipe/index.html
Egg shells - source of calcium and other minerals. And the membrane is a source of elastin.
Fish heads -
Fish stock from bones - http://culinaryarts....r/fishstock.htm
--Other parts of fish usually thrown out - cheeks and 'collars' of larger fish
Innards - some of the densest sources of nutrients.-
Necks- also good for stock. And from larger animals are perfectly good as roasts. I've seen Martha Stewart make roast lamb neck.
Leaves of plants usually thrown out-
-Carrot tops - chlorophyll, vitamin K, pretty much what's in all greens.
-sweet potato leaves
-celery, broccoli and cauliflower leaves - yeah, you won't get enough to make a meal, but don't throw them out. Eat them.
(Leaves from nightshades (tomatoes, potatoes, eggplant, tomatillos) are poisonous. As are the leaves of rhubarb)
Things that make great teas
Edited by alternativista, 19 March 2012 - 11:59 AM.